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Old 02-11-2010, 08:38 PM   #1
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upgrading from really used to newer used


Any tips on determining the effiency rating of a used furnace? This is a Consolidated Ind. unit that I can not look up specs on line.


Last edited by richdadj; 02-11-2010 at 09:40 PM.
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Old 02-11-2010, 09:47 PM   #2
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upgrading from really used to newer used


You may want to look at this post currently on the 2nd page here "Quatro Mba 080 NH2R furnance manual "

It may not be the same company but sounds like it -- if it is they went bankrupt --

Good luck

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Old 02-11-2010, 09:58 PM   #3
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upgrading from really used to newer used


I did see that. I guess I am trying to find other ways to determine the approx effiency rating (80%, 90%, etc...), other than just looking up the model number on line.
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Old 02-12-2010, 06:34 AM   #4
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upgrading from really used to newer used


90% furnaces will have plastic intake and exhaust. 80% will have a metal flue collar for the B=vent to connect to. Hopefully your replacement furnace comes with instructions so you know what size vent to use.
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